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Craig Ringer
Asked: 2019-01-14 16:59:22 +0800 CST

Convert absolute time in log lines to relative intervals

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Given a normal text-format line-oriented log file with timestamps in absolute form, is there any convenient tool that converts them to relative time-intervals?

e.g.

2019-01-11 19:31:35 UTC LOG:  restored log file "0000000A00000299000000B8" from archive
2019-01-11 19:33:44 UTC LOG:  restored log file "0000000A.history" from archive
2019-01-11 19:33:44 UTC LOG:  redo starts at 299/B8548220

to

2019-01-11 19:31:35 UTC LOG:  restored log file "0000000A00000299000000B8" from archive
          +00:02:09     LOG:  restored log file "0000000A.history" from archive
          +00:00:00     LOG:  redo starts at 299/B8548220

I know I can write something without too much pain. But surely this is a common enough need that there's something conveniently bundled in coreutils/textutils or easily apt/yum-able?

logging

0 Answers